Mechanical collecting container for cranes



Dec. 17, 1929. w. PQLGAR 1,740,116 MECHANICAL commune conmnsn ma cums Filed Apri1 50, 1929 -vwemtoz William P0 gar Patented Dec. 17, 1929 PATENT OFFICE WILLIAM POLGAR, F BRONX, NEW YORK MECHANICAL COLLECTING CONTAINER FOR CRANES Application filed April 30,

This invention relates to new and useful improvements in mechanical collecting containers for cranes and covers similar subject matter to that disclosed in my application Serial No. 292,236, filed on July 12th, 1928.

The invention has for an object the provision of a device of the class mentioned which is of simple durable construction dependable in use and efiicient in action and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

Fig. 1 is a side elevational view of a de- 0 vice constructedaccording to this invention.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a fragmentary sectional view taken on the line 3-3 of Fig. 2.

Fig. 1 is a fragmentary sectional view taken 5 on the line 4-4 of Fig. 2.

Fig. 5 is a fragmentary sectional view taken on the line 5-5 of Fig. 2.

Fig. 6 is a fragmentary sectional view taken on the line 66 of Fig. 1, and

r 9 Fig. 7 is a view similar to Fig. 1 but illustrating a modification.

The reference numeral 10 indicates generally a container consisting of sides 11, providing an open top 12 and an open bottom 13.

35 The edge 14 will hereafter be referred to as the front edge of the container. Guide rods 15 are secured upon the bottom of the container and extend from the rear thereof. These guide rods are parallel and are formed 40' with opposed grooves 16.

The free ends of the guide rods are held together by an end brace rod 17, and adjustable tie rods 18 connect with the outer ends of the guide rods and with the container 10 for '45 providing a rigid construction. A slide 19 engages between the guide rods and acts against rollers 20 engaged in the grooves 16. This slide may assume a position for closing the bottom of the container or may be moved so rearwards upon the guide rods to a position 1929. Serial No. 359,204.

not restricting the open bottom of the container. The front and side edges of the slide are sharpened as indicated by reference numeral 21.

An electric motor 22 is mounted upon the side of the container and connects with a drum 23 having two sections, a cable 24 wound in one direction upon one of the sections and another cable 25 wound in the other direction upon the other of the sections. The cable 24 acts against a pulley 26 upon a support rod 27 arranged between the guide rods and connects with the rear edge of the slide 19 as at 28. The cable 25 extends over a second pulley 29 upon the support rod 27 and 65 connects with the front edge of the slide 19 as at 30.

A support bracket 31 is attached upon the top of the container and rotatively holds a disc 32 provided with an arbor 33 connected 70 with an arm 34. A set screw 35 engages the bracket 31 and is abuttable against the disc for holding it in various fixed positions. Spaced lugs 36 project from the arm 34 and a screw 37 rotatively engages in the lugs. A lead eyelet 38 engages upon the screw and connects with a supporting cable 39 for connection with a hoisting crane. A counterweight 40 is shown attached on one side of the container.

In operation of the device it may be lowered, by connection with a hoisting crane, upon a pile of snow, coal or sand for imbedding itself within said pile. The electric motor 22 may be energized for turning in one direction to cause the slide 19 to force its Way thru the material holding a portion of the material within the container. The container may then be raised and moved over a truck or car and the motor22 energized for operating in the opposite direct-ion and moving the slide 19 away from the bottom of the container for dropping the material. Screw 37 may be rotated for changing the position of the lead eyelet 38 for suspending the device at different points relative to its center of gravity. This causes it to tilt as shown in Fig. 1 so that when it is dropped upon material to be removed, the front edge 14 imbeds itself within this material forming a cut for additional portions of the container to enter. The set screw 35 may be loosened and the arm 34 partially turned so that the device may be lowered with a front point striking first the material to be removed.

In the modified form of the device illus trated in Fig. 7 a container 10 has been shown which: is ofsubstantially box form, that is all the sides are parallel. In Fig. 1 the container shown has tapered sides. In other respects this device is similar to the preferred form. v v

While I have illustrated and described my invention with some degree of particularity,-

I realize that in practice various alterations therein' may be made. I therefore reserve the'right and privilege ofcha'nging the form of the details of construction or otherwise altering the arrangement of the correlated Having thus described'my invention, What I claim as new, and desire to secure by United States Letters Patent is 1. A device of the class described, comprismg a container with sides presenting an open topand open bottom, guide rails attached on the bottom of the container, a slide supported onthe guide rails and arranged to close the'bottom of the container and mov-- able to another position unrestricting the said open bottom, means for moving the slide into'said positions, and means for supporting the container to assume a horizontal or a tilted position. 4

2. A device of the class described, comprising a container with sides presenting an open topandanopen bottom, guide rails attached on the bottom of the container, a slide supported on the guide rails and arranged to close the bottom of the container and movable to another position unrestricting the said open bottom, a drum mounted on the container and having a section with a cable wound clockwise and another section with a cable wound anticlockwise, a means for rotating the drum in one or in the other direction, a support rod attached on the guide rails and carrying two pulleys, one of said cables being extended over one of said pulleys and attached on the front portion of the slide, the other cable being extended over the other pulley and attached on the rear portion of the slide, and means for supporting the con tainer to assume a horizontal or a tilted position.

3. A device of the class described, comprising a container with sides presenting an open top and an open bottom, guiderails attached on the bottom of the container, a slide supported on the guide rails and arranged to close the bottom of the container and movable to another position unrestricting'the said open bottom, a drum mounted on the container and having a section with a cable wound clockwise and another section with a cable wound anticlockwise, a means for rotating the drum in one or in the other direction, a support rod attached on the guide rails and carrying two pulleys, one of said cables being extended over one of said pulleys and attached on" the front portion ofctheslide, the other cable being extended over theother pulley and attached on the rear portion of the slide, and means for supporting the container.

4. A device'of the class described, comprism a container with sides presenting an open top and an open bottom, guide rails attached on the bottom of the container, a slide supported on the guide rails and arranged to close the bottom of the container and m'ovable to another p0sitionunrestricting the said open bottom, means for moving the slideinto said positions, a support casing attached on the container top, a disc rotatable therein, means for fixing the disc in various rot'ative' positions, an arbor fixed to-the disc and projecting from the casing, a bracket attached on the arbor, and meansfor holding an eye member for supporting the device in various positions upon the bracket.

5. A device of the'class described, comprising a container with sides presenting an open top and an open bottom, guide rails attached on the bottom of the container, a slide sup ported on the guide rails and arranged to close the bottom of the container and movable to another position unrestricting the said open bottom, means-for moving the slide into said positions, and means forsupporting the container. 7

Signed at New York in the county of New York and State of New York'this 19th day of April, A. D. 1929. 1

. IVI-LLIAM' POLGAR. 

